File Walker

[Bob Sneidar]

Hi all. 

I remember reading in a post that someone had made a stack that would walk through a file folder and enumerate all the files and folders. I cannot for the life of me find it in the Livecode Share site or the forums. I cannot search for “list files” or “find all files” because the forum search complains the words I am searching for are too simple! <GAAAHHH!>

I have written a command to do it and it works up through the files in the first folder it finds, but when it comes to going back to a prior recursion it does not seem to work. Here is the handler:

on enumerateFilesAndFolders theCurrentPath, @theCurrentList
   set the defaultFolder to theCurrentPath
   put the files into theCurrentFileList
   put the folders into theCurrentFolderList
   put theCurrentFileList & theCurrentFolderList into theCurrentFilesAndFolders
   filter theCurrentFilesAndFolders without ".*"
   sort theCurrentFilesAndFolders Ascending
   
   repeat for each line theCurrentLine in theCurrentFilesAndFolders
      put theCurrentPath & "/" & theCurrentLine into thePath
      
      if there is a file thePath then
         put thePath & cr after theCurrentList
      else if there is a folder thePath then
         put thePath & “/“ & cr after theCurrentList
         put thePath into theCurrentPath
         enumerateFilesAndFolders theCurrentPath, theCurrentList
      end if
   end repeat
end enumerateFilesAndFolders

It seems after the recent iteration is finished, the value of theCurrentPath is not reverting to the version of the prior iteration instance. In other words, it seems to be global to all instances of the iterations of the handler. I was under the distinct impression that each iteration had it’s own copies of a given variable because of the implicit scoping used by Livecode. Apparently I am mistaken. 

I would like to see how anyone else has done a file walker. 

Bob S